RUSSIAN hypersonic nuke submarines are running sinister “deep penetration” missions - diving beyond 500 metres in the Atlantic Ocean.
Tens of Vladamir Putin’s Borei-class nuclear subs have been plunging unusually far underwater in the Norwegian sea.
It is thought the vessel is capable of carrying new Zircon 3M22 hypersonic missiles, which can cover 2.7km per second.
A source told the Mirror: “The reason for these extreme depth missions has eluded most analysts but it could be simply to access the Atlantic with stealth.
“There has been an increase in Russian submarine activity of late, as there has with much of Moscow’s armed forces as it tests the resolve of NATO.
“Russia is keen to exert as much power and influence as possible around the globe, in particular for the Northern Fleet, which is integral for passage into the Atlantic.”
Normally Russian submarines would not go any deeper than 400 meters because at 900 metres these vessels could implode.
Military expert Bruce Jones said: “The mood of Russian defence has been alarming for months now.
“That is highlighted by the recent military build-up close to the Ukraine border.
“This latest move could be aimed at posturing up against NATO just to make countries feel nervous.
“But it certainly marks an escalation and now they appear to be turning their sights towards sub-surface missions.”
During the G7 summit earlier this year there were fears that a Russian cruise missile submarine may have been stalking the Cornish coast.
Reports claimed that air forces were engaged in "unusual" operations in and around waters near to the event- sparking concerns that something was awry.
The Sun reported that a £30 million ‘ring of steel’ had been developed to protect those at the event which includes the use of the HMS Prince of Wales warship.
But according to The Washington Examiner, sea and air forces were engaged in separate operations to combat an alleged security threat posed by the Russians.
This included heightened activity made by the US Navy aircraft, British sea and air forces, and French anti-submarine aircraft.
Most notably, the publication reported that a Royal Air Force P-8 Poseidon was deployed 500 miles from its RAF Lossiemouth home base in Scotland, “running search patterns at low altitude and speed in the area.”
It operated around and just outside the edges of Britain's 12-mile maritime border leading to beliefs that it may have been tracking something specific.
In 2019 Russia unveiled its first monster submarine - dubbed “Vladimir the Great”.
The the Borei-style nuclear ballistic missile submarine is capable of launching 20 intercontinental nuclear missiles, decimating cities almost 6,000 miles away.
It has been labelled the deadliest submarine on the planet.